Cover for storage containers for liquids

ABSTRACT

A cover for connecting sockets of a storage container for liquids has a plastic cover body divided into first and second cover parts. The first cover part is attached to the container top and has a first end face opening surrounded by an opening rim. The second cover part is pivotably connected to the first cover part and has a closure rim resting in the closed position on the rim of the top. The second cover part has a second end face opening and a cover rim surrounding it. The cover rim extends in a plane slanted relative to the closure rim of the second cover part. The cover rim covers in the closed position the opening rim of the end face opening of the first cover part. When open, the second cover part surrounds the first cover part with clearance and is supported on the first cover part.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to a cover for connecting sockets forreceiving pipelines such as flow pipes and return pipes of oil burnersof a furnace as well as a filling level indicator, a suction pump, anaerating and venting valve, or like operating devices. Such connectingsockets are arranged at the top of the storage container for liquidsthat are, in particular, combustible liquids such as heating oil.

[0003] 2. Description of the Related Art

[0004] The manufacture of such covers that are preferably used inconnection with outdoor heating oil storage tanks and are manufacturedof sheet metal, is expensive.

SUMMARY OF THE INVENTION

[0005] It is an object of the present invention to further develop thecover for storage containers of the aforementioned kind with regard toan optimal protection against penetration of moisture as well as withregard to an inexpensive manufacture.

[0006] In accordance with the present invention, this is achieved inthat the divided cover, manufactured of plastic material, comprises astationary cover part, connected to the rim of the top of the storagecontainer, and a pivotable cover part connected to the stationary coverpart, wherein the pivotable cover part in a closed position rests with aclosure rim against the rim of the top of the storage container and witha cover rim, that surrounds the end face opening of the pivotable coverpart and extends in a plane that is slanted relative to the closure rimin a closing direction of the pivotable cover part. The cover rim coversthe opening rim of the end face opening of the stationary cover part andsurrounds in the open position the stationary cover part at a clearanceand is supported thereon.

[0007] The invention is furthermore characterized in regard to themethod by the steps of deep drawing a cover body from a plastic sheetmaterial, subsequently separating the deep drawing edge from the coverbody by a cut parallel to the plane of the sheet material, as well asseparating the cover body into a first cover part that is to be fixedlyconnected to the rim of the top of the storage container and a secondcover part that is to be pivotably connected to the first cover part,cutting out a segment from the cover body by means of two additionalcuts, wherein the first cut is carried out perpendicularly, orapproximately perpendicularly, to the lower edge of the cover body atthe inner side of the drainage groove and the second cut, beginning atthe lower edge of the cover body, extends at a slant to the first cutthrough the cover body.

BRIEF DESCRIPTION OF THE DRAWING

[0008] In the drawing:

[0009]FIG. 1 shows a perspective illustration of a storage container forheating oil with closed cover;

[0010]FIG. 2 shows in a perspective illustration the storage containerof FIG. 1 for heating oil with the cover in the open position;

[0011]FIG. 3 shows in a side view the upper part of the container partwith closed cover;

[0012]FIG. 4 shows in a side view the upper part of the container withthe cover in the open position;

[0013]FIG. 5 shows a longitudinal section of the upper part of thecontainer with the cover in the closed position; and

[0014]FIG. 6 shows in a side view the cover body made by deep drawingfrom a plastic sheet material illustrating the course of the cut forseparating the cover body into two cover parts.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The parallelepipedal storage container 1, made of sheet metal,provided for liquids, in particular, combustible liquids like heatingoil, used oil, lubricant oil, and diesel fuel, has a bottom 2, foursidewalls 3-6 connected by rounded corner areas 7 to one another, a top8 with a connecting socket 9 for the feed conduit 10 and a connectingsocket 11 for the return conduit 12 of the oil burner of a furnace, aconnecting socket 13 for inserting a filling level indicator as well asa connecting socket 14 for an aerating and venting valve, and a cover 15for the connecting sockets 9, 11, 13, 14, and the various operatingdevices.

[0016] The divided cover 15 made of plastic material is comprised of astationary cover part 17 mounted on the rim 16 of the top 8 of thestorage container 1 and a cover part 18 connected to the cover part 17so as to be pivotable relative to the cover part 17. In the closedposition 18 a, the pivotable cover part 18 rests with a closure rim 19against the rim 16 of the top 8 of the storage container and covers withits cover rim 20, that surrounds an end face opening 21 of the coverpart 18 and extends in a plane 22-22 positioned at a slant relative tothe closure rim 19, the opening rim 23 of the end face opening 24 of thestationary cover part 17. In the open position 18 b, the pivotable coverpart 18 covers the stationery cover part 17 at a clearance and issupported with the end face 25 on a projection 26 of the stationarycover part 17. A drainage groove 27 is formed in the opening rim 23 ofthe end face opening 24 of the stationary cover part 17; by means of thegroove 27, rainwater or melted snow that has entered the gap 28 betweenpivotable and stationary cover parts 17, 18 can drain to the exterior.

[0017] The stationary and the pivotable cover parts 17, 18 of the cover15 have a lower cover rim 29, 30, respectively. The cover rims 29, 30surround the rim 16 of the top 8 of the storage container 1. Thepivotable cover 18 has in the area of the lower cover rim 30 a formedportion 31 that, in the closed position 18 a of the pivotable coverpart, forms between the lower cover rim 30 and the rim 16 of the top 8of the storage container 1 a through opening 32 for the feed and returnconduits 10, 12 of the oil burner of a furnace that are connected to theconnecting sockets 10, 11 of the storage container 1.

[0018] The pivotable cover 18 has a recessed portion 33 for receiving ahandle 34 for opening and closing the cover 15. The handle 34 is made ofa pipe section 35.

[0019] In place of the handle in the form of a pipe section, on thepivotable cover part a lock for locking the cover can be provided. Thelock can be configured as a handle for opening and closing the cover.

[0020] For manufacturing the cover, the cover body 36 illustrated inFIG. 6 is deep drawn of plastic sheet material 37. By means of a cut39-39 parallel to the plane 40-40 of the sheet material 37, first thedeep drawing edge 38 is separated from the cover body 36. Subsequently,the cover body 36 is divided into a first cover part 17 that is to befixedly attached to the rim 16 of the top 8 of the storage container 1and a second cover part 18 that is to be pivotably connected to thefirst cover part 17. Separating the cover body 36 into the two coverparts 17, 18 is realized by cutting out a segment 41 of the cover bodywith two additional cuts 42-42, 43-43, wherein the first cut 42-42extends perpendicularly, or substantially perpendicularly, to the loweredge 44 of the cover body 36 at the inner side 45 of the drainage groove27 and the second cut 43-43 extends, beginning at the lower edge 44 ofthe cover body 36, at a slant to the first cut 42-42 through the coverbody 36.

[0021] While specific embodiments of the invention have been shown anddescribed in detail to illustrate the inventive principles, it will beunderstood that the invention may be embodied otherwise withoutdeparting from such principles.

What is claimed is:
 1. A cover for covering connecting sockets arrangedon a topside of a storage container for liquids, the cover comprising: acover body made of plastic material and divided into a first cover partand a second cover part; wherein the first cover part is fixedly mountedon a rim of a top of the storage container and has a first end faceopening surrounded by an opening rim; wherein the second cover part ispivotably connected to the first cover part; wherein the second coverpart has a closure rim resting in a closed position of the second coverpart on the rim of the top of the storage container; wherein the secondcover part has a second end face opening and a cover rim surrounding thesecond end face opening; wherein the cover rim extends in a plane thatis slanted relative to the closure rim in a closing direction of thesecond cover part; wherein the cover rim covers in the closed positionthe opening rim of the end face opening of the first cover part; andwherein the second cover part surrounds in an open position the firstcover part with clearance and is supported on the first cover part. 2.The cover according to claim 1, wherein the connecting sockets areconfigured to receive feed and return conduits of an oil burner of afurnace, a filling level indicator, a vacuum pump, an aerating andventing valve, and wherein the storage container is a container forstoring combustible liquids.
 3. The cover according to claim 1, whereinthe first cover part comprises a drainage groove formed at the openingrim of the first end face opening of the first cover part.
 4. The coveraccording to claim 1, wherein the first and second cover parts each havea lower cover rim surrounding the rim of the top of the storagecontainer, wherein the second cover part in the area of the lowercovering rim has a formed portion that, in the closed position of thesecond cover part, forms between the lower cover rim and the rim of thetop of the storage container a through opening for pipelines connectedto the connecting sockets of the storage container.
 5. The coveraccording to claim 1, wherein the second cover part has a recessedportion and a handle for opening and closing the second cover partarranged in the recessed portion.
 6. The cover according to claim 5,wherein the handle is a pipe section inserted into the recessed portion.7. The cover according to claim 1, further comprising a lock arranged onthe second cover part for locking the cover part, wherein the lockserves as a handle for opening and closing the cover part.
 8. A methodfor manufacturing a cover for covering connecting sockets arranged on atopside of a storage container for liquids, the cover comprising a coverbody made of plastic material and divided into a first cover part and asecond cover part; wherein the first cover part is fixedly mounted on arim of a top of the storage container and has a first end face openingsurrounded by an opening rim; wherein the second cover part is pivotablyconnected to the first cover part; wherein the second cover part has aclosure rim resting in a closed position of the second cover part on therim of the top of the storage container; wherein the second cover parthas a second end face opening and a cover rim surrounding the second endface opening; wherein the cover rim extends in a plane that is slantedrelative to the closure rim in a closing direction of the second coverpart; wherein the cover rim covers in the closed position the openingrim of the end face opening of the first cover part; and wherein thesecond cover part surrounds in an open position the first cover partwith clearance and is supported on the first cover part; the methodcomprising the steps of: deep-drawing a cover body of plastic sheetmaterial; separating a deep drawing edge from the cover body by a cutcarried out parallel to a plane of the plastic sheet material; anddividing the cover body into a first cover part, that is to be fixedlyconnected to the rim of the top of the storage container, and into asecond cover part, that is to be fastened pivotably on the first coverpart, by cutting a segment out of the second cover part with a first cutthat is perpendicular or substantially perpendicular to a lower edge ofthe cover body at an inner side of a drainage groove and with a secondcut that, beginning at the lower edge of the cover body, extends at aslant relative to the first cut through the cover body.